scholarly journals {4-Amino-N′-[(2-oxidonaphthalen-1-yl)methylidene]benzohydrazidato}dimethyltin(IV)

2014 ◽  
Vol 70 (7) ◽  
pp. m283-m283
Author(s):  
Miao Cheng ◽  
Yuhong Zhao ◽  
Tiantian Dong ◽  
Jichun Cui
Keyword(s):  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Dihedral Angle ◽  
Title Compound ◽  
Ring System ◽  
Naphthalene Ring ◽  
Trigonal Bipyramidal Geometry ◽  
Trigonal Bipyramidal ◽  
Distorted Trigonal Bipyramidal

In the title compound, [Sn(CH3)2(C18H13N3O2)], the SnIVion is coordinated by one N and two O atoms from the tridentate 4-amino-N′-[(2-oxidonaphthalen-1-yl)methylidene]benzohydrazidate(2−) ligand and two C atoms from methyl ligands in a distorted trigonal–bipyramidal geometry. The dihedral angle between the naphthalene ring system and the benzene ring is 19.2 (2)°. In the crystal, weak N—H...O hydrogen bonds link the molecules into zigzag chains along [010].

scholarly journals {4-Chloro-N′-[(2-oxidonaphthalen-1-yl-κO)methylidene]benzohydrazidato-κ2N′,O}dimethyltin(IV)

2013 ◽  
Vol 69 (12) ◽  
pp. m688-m688 ◽  
Author(s):  
Jichun Cui ◽  
Yanling Qiao ◽  
Fei Wang
Keyword(s):  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Dihedral Angle ◽  
Ring System ◽  
Title Complex ◽  
Naphthalene Ring ◽  
Axis Direction ◽  
Trigonal Bipyramidal ◽  
A Chain ◽  
Distorted Trigonal Bipyramidal

In the title complex, [Sn(CH3)2(C18H11ClN2O2)], the SnIVion is coordinated by two O atoms and an N atom from a 4-chloro-N′-[(2-oxidonaphthalen-1-yl)methylidene]benzohydrazidate ligand and two C atoms from two methyl ligands in a distorted trigonal–bipyramidal geometry [Sn—O = 2.092 (3) and 2.144 (3) Å; Sn—N = 2.160 (4) Å]. The dihedral angle between the naphthalene ring system and the benzene ring is 8.6 (2)°. In the crystal, adjacent molecules are linked by weak C—H...O hydrogen bonds, forming a chain along theb-axis direction.

scholarly journals 1-{(Z)-[2-Methoxy-5-(trifluoromethyl)anilino]methylidene}naphthalen-2(1H)-one

2013 ◽  
Vol 69 (2) ◽  
pp. o163-o163
Author(s):  
Hakan Kargılı ◽  
Ayşen Alaman Ağar ◽  
Gökhan Alpaslan ◽  
Orhan Büyükgüngör ◽  
Ahmet Erdönmez
Keyword(s):  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Dihedral Angle ◽  
Title Compound ◽  
Tautomeric Form ◽  
Ring System ◽  
Trifluoromethyl Group ◽  
Naphthalene Ring ◽  
Compound C

The title compound, C19H14F3NO2, crystallizes in the keto–amine tautomeric form, with a strong intramolecular N—H...O hydrogen bond. The molecule is almost planar; the dihedral angle between the naphthalene ring system and the benzene ring is 4.60 (7)°. In the crystal, molecules are linked into chains along thecaxis by C—H...O hydrogen bonds. The F atoms of the trifluoromethyl group are disordered over two positions with refined site occupancies of 0.668 (9) and 0.332 (9).

scholarly journals 6-Cyanonaphthalen-2-yl 4-hexylbenzoate

2014 ◽  
Vol 70 (5) ◽  
pp. o620-o620 ◽  
Author(s):  
Md. Lutfor Rahman ◽  
H. T. Srinivasa ◽  
Mohd. Yusoff Mashitah ◽  
Huey Chong Kwong ◽  
Ching Kheng Quah
Keyword(s):  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Dihedral Angle ◽  
Title Compound ◽  
Crystal Packing ◽  
Minor Component ◽  
Ring System ◽  
Naphthalene Ring ◽  
Π Interactions ◽  
Compound C

In the title compound, C24H23NO2, a whole molecule is disordered over two sets of sites with occupancies in a ratio of 0.692 (6):0.308 (6). In the major disorder component, the naphthalene ring system forms a dihedral angle of 68.6 (5)° with the benzene ring. The corresponding angle in the minor component is 81.6 (10)°. In the crystal, molecules are linked into chains propagating along theb-axis directionviaweak C—H...O hydrogen bonds. The crystal packing is further consolidated by weak C—H...π interactions.

scholarly journals 12-Ethyl-6a,10a-dihydro-5H-6-oxachrysene

IUCrData ◽  
2020 ◽  
Vol 5 (3) ◽  
Author(s):  
Alan J. Lough ◽  
Austin Pounder ◽  
William Tam
Keyword(s):  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Dihedral Angle ◽  
Title Compound ◽  
Chair Conformation ◽  
Ring System ◽  
Naphthalene Ring ◽  
Pyran Ring ◽  
Compound C

In the title compound, C19H16O, the pyran ring is in a half-chair conformation. The essentially planar naphthalene ring system (r.m.s. deviation = 0.020 Å) forms a dihedral angle of 14.37 (5)° with the fused benzene ring. In the crystal, pairs of molecules are connected into inversion dimers by weak C—H...O hydrogen bonds to generate R 2 2(6) loops.

scholarly journals N-(4-Chlorophenyl)-2-(naphthalen-1-yl)acetamide

2012 ◽  
Vol 68 (8) ◽  
pp. o2463-o2463
Author(s):  
Hoong-Kun Fun ◽  
Ching Kheng Quah ◽  
Prakash S. Nayak ◽  
B. Narayana ◽  
B. K. Sarojini
Keyword(s):  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Dihedral Angle ◽  
Title Compound ◽  
Ring System ◽  
Maximum Deviation ◽  
Naphthalene Ring ◽  
Compound C

In the title compound, C18H14ClNO, the naphthalene ring system [maximum deviation = 0.014 (9) Å] forms a dihedral angle of 74.8 (2)° with the benzene ring. In the crystal, molecules are linkedviaN—H...O hydrogen bonds into chains propagating along [010].

scholarly journals 2-Hydroxy-N′-[2-(6-methoxynaphthalen-2-yl)propanoyl]benzohydrazide

2012 ◽  
Vol 68 (4) ◽  
pp. o1251-o1252
Author(s):  
Shaaban Kamel Mohamed ◽  
Peter N. Horton ◽  
Mehmet Akkurt ◽  
Mustafa R. Albayati ◽  
Herman Potgeiter
Keyword(s):  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Dihedral Angle ◽  
Torsion Angle ◽  
Title Compound ◽  
Ring System ◽  
Naphthalene Ring ◽  
Compound C ◽  
Ring Motif

In the title compound, C21H20N2O4, the naphthalene ring system makes a dihedral angle of 84.5 (3)° with the benzene ring, and the –C(=O)–N(H)–N(H)–C(=O)– torsion angle is 70.7 (7)°, so that the molecule is twisted. AnS(6) ring motif is formedviaan intramolecular O—H...O hydrogen bond. In the crystal, molecules are linked by N—H...O and C–H...O hydrogen bonds into supramolecular layers in theabplane.

scholarly journals Crystal structure of (E)-N-[(2-methoxynaphthalen-1-yl)methylidene]-3-nitroaniline

2015 ◽  
Vol 71 (12) ◽  
pp. o941-o942
Author(s):  
Devika Bhai R. ◽  
C. R. Girija ◽  
Shalini Suresh ◽  
Ramakrishna Reddy
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Nitro Group ◽  
Benzene Ring ◽  
Dihedral Angle ◽  
Title Compound ◽  
Ring System ◽  
Stacking Interactions ◽  
Naphthalene Ring ◽  
Compound C

In the title compound, C18H14N2O3, the dihedral angle between the naphthalene ring system and the benzene ring is 59.99 (13)°. A short intramolecular C—H...N contact closes anS(6) ring. The nitro group is disordered over two orientations in a statistical ratio. In the crystal, weak C—H...O hydrogen bonds and very weak π–π stacking interactions [centroid–centroid separation = 3.9168 (17) Å] are observed.

scholarly journals The crystal structure of 2-[5-(dimethylamino)naphthalene-1-sulfonamido]phenyl 5-(dimethylamino)naphthalene-1-sulfonate

2015 ◽  
Vol 71 (10) ◽  
pp. o721-o722 ◽  
Author(s):  
Kittipong Chainok ◽  
Tanwawan Duangthongyou ◽  
Thawatchai Tuntulani ◽  
Apinya Chuenka ◽  
Boontana Wannalerse
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Dihedral Angle ◽  
Title Compound ◽  
Ring System ◽  
Naphthalene Ring ◽  
Twofold Axis ◽  
Compound C

The complete molecule of the title compound, C30H29N3O5S2, is generated by a crystallographic twofold axis: the O atom and NH group attached to the central benzene ring are statistically disordered. The dihedral angle between the naphthalene ring system and the central benzene ring is 52.99 (6)°, while the pendant naphthalene ring systems subtend a dihedral angle of 68.17 (4)°. An intramolecular C—H...O hydrogen bond closes anS(6) ring. In the crystal, the molecules are linked by weak C—H...O hydrogen bonds.

scholarly journals N′-[(E)-2-Chlorobenzylidene]-2-(6-methoxynaphthalen-2-yl)propanohydrazide

2014 ◽  
Vol 70 (6) ◽  
pp. o631-o632 ◽  
Author(s):  
Joel T. Mague ◽  
Shaaban K. Mohamed ◽  
Mehmet Akkurt ◽  
Herman Potgieter ◽  
Mustafa R. Albayati
Keyword(s):  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Dihedral Angle ◽  
Title Compound ◽  
Ring System ◽  
Naphthalene Ring ◽  
Axis Direction ◽  
Compound C ◽  
Corrugated Sheets

In the title compound, C21H19ClN2O2, the benzene ring and the naphthalene ring system are oriented at a dihedral angle of 65.24 (10)°. In the crystal, N—H...O, C—H...N and C—H...O hydrogen bonds link the molecules, forming chains along theb-axis direction. Further C—H...O hydrogen bonds link the chains, forming corrugated sheets lying parallel to (10-1).

scholarly journals 1-[2,6-Dichloro-4-(trifluoromethyl)phenyl]-3,4-dimethylpyrano[2,3-c]pyrazol-6(1H)-one

2012 ◽  
Vol 68 (8) ◽  
pp. o2350-o2350
Author(s):  
Hoong-Kun Fun ◽  
Wan-Sin Loh ◽  
B. K. Sarojini ◽  
B. J. Mohan ◽  
B. Narayana
Keyword(s):  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Dihedral Angle ◽  
Title Compound ◽  
Pyrazole Ring ◽  
Ring System ◽  
Helical Chain ◽  
Maximum Deviation ◽  
Compound C

In the title compound, C15H9Cl2F3N2O2, the 1,6-dihydropyrano[2,3-c]pyrazole ring system is almost planar, with a maximum deviation of 0.0226 (14) Å, and forms a dihedral angle of 69.90 (6)° with the benzene ring. In the crystal, molecules are linked into a helical chain along thecaxis by C—H...O hydrogen bonds.

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